Non-reusable and remotely detectable adhesive security article e.g. for packaging has temperature resistant adhesive that reduces after use

摘要

The adhesive security article consists of a support (1) carrying a series of separate motifs (2) that are not visible but have a property of reducing the adhesion between the support and an adhesive layer (3) that covers the motifs and the parts of the support between them. The adhesive is temperature resistant and the support and/or adhesive layer contain components selected from colorings, minerals, optically variable elements such as iridescent pigments, and agents that react to electromagnetic radiation such as ultra-violet or infrared rays. The article also contains a remotely detectable element (4) such as a magnetic wire with medium to high coercivity, or magnetic pigments.